In the boot order section of my uefi the manjaro grub doesnt apear, there is only one thing in the list but it has no name (and loads up windows). when i press f12 during boot it finds both just fine but the f12 doesnt permanentally change it, only loads it up for that one time.
can you boot on manjaro
open a terminal and returns
sudo parted -l sudo efibootmgr -v inxi -Mza